The flag of Gabon is a tricolour consisting of three horizontal green, yellow and blue bands. Adopted in 1960 to replace the previous colonial flag containing the French Tricolour at the canton, it has been the flag of the Gabonese Republic since the country gained independence that year. The design of the present flag entailed the removal the Tricolour and the widening of the yellow stripe at the centre.
Gabon – considered "one of the more progressive" of French colonies – swiftly formulated a design for a new flag, which was officially adopted a year later in 1959. It featured a horizontal tricolour identical to the current flag, but with the yellow stripe at the centre narrower than the green and blue bands surrounding it. The French Tricolour was situated at the canton of the flag, making Gabon the only French autonomous republic to feature this "symbolic link" with France.
On August 9, 1960 – just over a week before Gabon became an independent country on August 17 – the flag was slightly modified. The change entailed removing the Tricolour at the canton and enlarging the yellow stripe at the centre, thus giving it equal width with the two other bands.
The proportions of Gabon's flag are 3:4. This uncommon flag ratio, which is enshrined by Gabonese law, is shared by the flags of only two other countries[A] – Papua New Guinea and San Marino. Furthermore, the country's flag does not utilize the green, yellow and red colours of the Pan-Africanist movement, in contrast to its neighbouring countries. Unlike other former French colonies in Africa, the flag consists of a horizontal tricolour, rather than a vertical one modelled after the flag of France.
Horizontal green and blue bands separated by thinner yellow band at the centre, with the French Tricolour at the canton.
Presidential Standard of Gabon
Green field with three yellow circles forming the top third. The bottom two-thirds feature a yellow field, with a galleon flying the flag of Gabon at the stern sailing on the sea with three blue waves.